...eloper keys]]. Developer keys are the unique cryptographic signatures for XO laptops that permit access to the system [[Firmware|firmware]].
* the group of XO laptops, which may be nearby or distant.
10 KB (1,689 words) - 22:22, 1 October 2021
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Alpha test model first A-Test, also known as A1.
...the first OLPC XO-1.5 electronics prototype boards occurred May 21, 2009. Power distribution debugging continued over the weekend, and formal debug and BIO
5 KB (862 words) - 23:12, 21 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Alpha test model second A-Test, also known as A2.
* "XO-1.5", "A2", and a serial number hand-written in the battery compartment
6 KB (980 words) - 23:43, 21 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Beta test model (B-Test), also known as B1.
XO-1.5 use Q3xxx firmware releases. These will not work on an XO-1.
5 KB (903 words) - 23:41, 21 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Beta test model 2 (B-Test 2), also known as B2.
...d of these in September, 2009. If you have a pre-production version of an XO-1.5, chances are it is a B2 version.
6 KB (1,001 words) - 00:06, 2 May 2014
...e Laptop per Child to the Vung Vieng Village. [http://seanlaurence.com/the-xo-travels-to-the-vung-vieng-village-floating-school-in-vietnam/ Read how she
...Vung Vieng Fishing Village Laptop Project began when Tuyen saw me using my XO on the Indochina Junk's "Red Dragon" in February, 2009. Tuyen and I began b
33 KB (5,380 words) - 17:37, 20 October 2015
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] Beta test model 3 (B-Test 3), also known as B3.
* Large polymer (black) capacitors in the processor power supply instead of tantalum (yellow).
4 KB (623 words) - 23:36, 21 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] C test model 2 (C-Test 2), also known as C2.
...1K were Ramp (start of production) units, and are externally identical to XO-1 w. capacitive (single) touchpad. [[Image:XO_1.5_Annotated_Hinge_Cover.jp
8 KB (1,236 words) - 22:50, 28 October 2013
...and regression testing. Functional testing is about ensuring that the OLPC XO functions as it was intended by the designers. This is different to usabili
...ld's poorest children by providing each child with a rugged, low-cost, low-power, connected laptop with content and software designed for collaborative, joy
17 KB (2,069 words) - 04:11, 6 August 2013
[[Hardware#XO-1.5_Laptop|XO-1.5 Laptop]] model C3.
The C3 was one of the XO-1.5 (CL1B) versions in production.
4 KB (709 words) - 22:51, 28 October 2013
...aptop|XO-1]]. Power consumption and purchase cost are both lower than the XO-1.5
XO-1.75 machines ship with a [[Releases|new software release]] based on Fedora
16 KB (2,340 words) - 00:21, 4 March 2014
...planned OLPC hardware release is the [[XO-4]] laptop, a successor to the [[XO-1.75]] and due in 2013.
...610 ARM system-on-a-chip from Marvell, which is also used in the [[XO-1.75|XO-1.75 laptop]].
11 KB (1,554 words) - 17:34, 3 October 2014
...pment of the [[Embedded controller]] and the [[XO_1.75_HOST_to_EC_Protocol|XO-1.75 Host/EC communications protocol]].
* [[Media:XO1.75_EC_Breadboard_Block.pdf|Block Diagram (PDF)]]
2 KB (240 words) - 00:50, 13 October 2010
The default system software for the XO laptop includes child-friendly Activities, the Sugar user interface, and ma
This page enumerates some of them, the [[#Application environment diagram|diagram below]] shows how they fit together.
15 KB (2,030 words) - 21:59, 24 May 2011
This page describes the [[Hardware#XO_Laptop|XO]] DC Input circuit ([[XO_DC_Input|requirements]]) in detail.
...e of input voltages (-40 to 40V), and is also designed to seek the maximum power point of a solar input device.
11 KB (1,795 words) - 20:52, 2 May 2011
 | File:XO 1.75 PowerDistribution.pdf Power distribution diagram for [[Hardware#XO_1.75_Laptop|XO-1.75]] [[XO_1.75_C2|C2 version]] motherboard.
[[Category:XO-1.75]]
(50 KB) - 12:18, 3 April 2012 |
 | File:XO 1.75 PowerDistribution.png Power distribution diagram for [[Hardware#XO_1.75_Laptop|XO-1.75]] [[XO_1.75_C2|C2 version]] motherboard.
[[Category:XO-1.75]]
(1,608 × 2,156 (518 KB)) - 12:25, 3 April 2012 |
 | File:XO 1.75 Tinderbox C2.png ...aptop|XO-1.75]] [[XO_1.75_C2|C2 version]] motherboard, including Tinderbox power measurement points.
[[Category:XO-1.75]]
(1,734 × 2,234 (662 KB)) - 18:12, 3 April 2012 |
| File:XO 1.75 Tinderbox C2.pdf Power distribution diagram for [[Hardware#XO_1.75_Laptop|XO-1.75]] [[XO_1.75_C2|C2 version]] motherboard, including [[Tinderbox_Power]]
[[Category:XO-1.75]]
(62 KB) - 18:16, 3 April 2012 |
This page describes the [[Tinderbox_Power|Tinderbox]] version of the [[XO-3]] [[XO_3_A1|A1]] tablet.
=Power Distribution=
4 KB (692 words) - 15:27, 12 April 2012
